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**ashwinprakas** · 08-29-2011, 11:29 AM

Originally posted by psr View Post

In any Synchromesh gear box this is feasible...but if you try shifting at the wrong RPM your gear box will be damaged necessitating crankcase opening and gear box re-build.

Sir can you provide us with the necessary data required to perform this successfully.

And sir, I have one more query.
Can this be done only while upshifting?? Cause am not much sure about bikes, but in cars it can only be done while upshifting.

**psr** · 08-29-2011, 12:06 PM

Originally posted by ashwinprakas View Post

Sir can you provide us with the necessary data required to perform this successfully.

And sir, I have one more query.
Can this be done only while upshifting?? Cause am not much sure about bikes, but in cars it can only be done while upshifting.

Upshifting can be done at most RPMs , it is while downshifting that the gears are likely to get damaged if not done properly...Straight cut gears are much easier to shift than splined gears because of spline pattern.

End of the day it is WISER to shift while disengaging clutch than with out clutch.A damaged or worn clutch requires opening the clutch case and replacement of clutch plates..maximum Rs.1500/-...downtime will be one day......a damaged gear will require Splitting Crankcase and replacement of gear and other broken parts,which the broken piece would have damaged..cost =cost of broken gear+crankcase opening &closing labour= not less than 3,000/-... down time ...till you get the replacement gear+ two days for splitting and assembling crankcase.
You decide which you prefer.
How Motorcycle Transmissions Work

**ashwinprakas** · 08-29-2011, 01:07 PM

Originally posted by psr View Post

Upshifting can be done at most RPMs , it is while downshifting that the gears are likely to get damaged if not done properly...Straight cut gears are much easier to shift than splined gears because of spline pattern.

End of the day it is WISER to shift while disengaging clutch than with out clutch.A damaged or worn clutch requires opening the clutch case and replacement of clutch plates..maximum Rs.1500/-...downtime will be one day......a damaged gear will require Splitting Crankcase and replacement of gear and other broken parts,which the broken piece would have damaged..cost =cost of broken gear+crankcase opening &closing labour= not less than 3,000/-... down time ...till you get the replacement gear+ two days for splitting and assembling crankcase.
You decide which you prefer.
How Motorcycle Transmissions Work

Yikes

.... Clutch engaged shifting it is.

**acs1207** · 08-29-2011, 02:44 PM

Originally posted by Aneesh@4GHz View Post

Actually i came to know about that from you today!

I didn't know that..

Didn't that damages the gear box?

It should.

**rixBhp** · 08-29-2011, 04:11 PM

Hi guys, ignore if this is off topic. What could be the ideal price for a Krizma R, 1 year old, good condition, single owner? The seller is asking 72k

**ashwinprakas** · 08-29-2011, 04:24 PM

Originally posted by rixBhp View Post

Hi guys, ignore if this is off topic. What could be the ideal price for a Krizma R, 1 year old, good condition, single owner? The seller is asking 72k

If the fairing and everything else's intact and the bikes ran below 15K then the price'll for sure be 70k+.

Btw the price of intact 2005 ZMA's 40k. So it all depends on your selection.

**ashwinprakas** · 08-29-2011, 05:00 PM

Mileage Shifting.

0Kmph ~ 15Kmph =1st
15Kmph ~ 25Kmph =2nd
25Kmph ~ 35Kmph =3rd
35Kmph ~ 45Kmph =4th
45Kmph ~ 55Kmph =5th

Performance Shifting.

0Kmph ~ 25Kmph = 1st
25Kmph ~ 50Kmph = 2nd
50Kmph ~ 80Kmph = 3rd
80Kmph ~ 105Kmph = 4th
105Kmph ~ 140Kmph = 5th

**Aneesh@4GHz** · 08-29-2011, 06:44 PM

For mileage +10km/h on each gear.

1=10
2=20
3=30
4=40
5=50

**MAXzma** · 08-29-2011, 07:10 PM

Originally posted by psr View Post

The drill size is 1.5 mm normal and maximum you can drill is 2.3mm..do not go above this size as it will cause the slide to flutter,ie., move up and down even at constant throttle,and cause problems.
Have noted it down sir. Will get it done sometime. Will call you before that.

Unless you put in Excess this will not happen...apply a thin coat ..say about 3mm width of the Three bond all around and it will seal ok.
This will be done asap. Thanks sir!

Replies in BOLD..

**Aneesh@4GHz** · 08-29-2011, 07:30 PM

Originally posted by psr View Post

Try applying Liquid Gasket like Three Bond

What is this black colored thing? Is that what you mean by Three Bond?

**acs1207** · 08-29-2011, 08:36 PM

Originally posted by psr View Post

For the past 500 kms my bike had a strange behavior of being good and poor in acceleration at different RPMs. A flat spot,or vibes, will appear at any time at any point in RPM,and was not happening always....suspecting Ignition issues...Bike was smooth,and vibe free through the RPM range and I could easily accelerate bike to 80 Kmph in 400 Mts...

Do not try this if you are not skilled in doing this kind of work...Better to buy a new TPS and fix than this DIY,to ensure peace of mind.

When it's you who face any problem , the others benefit

'cause ou'll find the problem and fix it and post it .

Originally posted by Aneesh@4GHz View Post

^^^ Happy to know that.

Tried Bearing Grease on chain,felt smoother than before.

Have to try it

Originally posted by psr View Post

You are developing loose contact in the CDI connector...see my post few pages back....The CDI is under the seat to the right (kicker side)..It is positioned after the side frame.....Try pulling and pushing the connector,and it will solve the problem..

This is what I meant by the first reply !!

Originally posted by ashwinprakas View Post

Theres an optimum RPM if we do it properly there'll be no damage + more clutch life.
And not exactly sure about it, just got the above info from the GS150R post.

AFAIK , there's no optimum RPM for clutchless gear change . If you try to improve clutch life you will proportionately shorten gear life

. OT:In Yezdi bikes , there is a feature called 'auto-clutch' . The gear lever (which doubled as the kick-start lever) when depressed or pulled up to change gear does not allow gear to engage unless the lever comes back to normal position .

Originally posted by psr View Post

In any Synchromesh gear box this is feasible...but if you try shifting at the wrong RPM your gear box will be damaged necessitating crankcase opening and gear box re-build.

It's feasible , but not recommended . I had to do it on my previous bike when the clutch cable broke . Didn't go higher than 2nd gear , so was easy to stop - by putting into Neutral .

Originally posted by ashwinprakas View Post

Sir can you provide us with the necessary data required to perform this successfully.
And sir, I have one more query.
Can this be done only while upshifting?? Cause am not much sure about bikes, but in cars it can only be done while upshifting.

While upshifting , the higher gear requires lower RPM for the same or lower speed .

Originally posted by psr View Post

Upshifting can be done at most RPMs , it is while downshifting that the gears are likely to get damaged if not done properly...Straight cut gears are much easier to shift than splined gears because of spline pattern.
Straight cut/splined -words beyond my database . .
End of the day it is WISER to shift while disengaging clutch than with out clutch.A damaged or worn clutch requires opening the clutch case and replacement of clutch plates..maximum Rs.1500/-...downtime will be one day......a damaged gear will require Splitting Crankcase and replacement of gear and other broken parts,which the broken piece would have damaged..cost =cost of broken gear+crankcase opening &closing labour= not less than 3,000/-... down time ...till you get the replacement gear+ two days for splitting and assembling crankcase.
You decide which you prefer.
How Motorcycle Transmissions Work

Originally posted by ashwinprakas View Post

Yikes

.... Clutch engaged shifting it is.

The light at the end of the tunnel !!!

Originally posted by rixBhp View Post

Hi guys, ignore if this is off topic. What could be the ideal price for a Krizma R, 1 year old, good condition, single owner? The seller is asking 72k

Originally posted by ashwinprakas View Post

If the fairing and everything else's intact and the bikes ran below 15K then the price'll for sure be 70k+.
Btw the price of intact 2005 ZMA's 40k. So it all depends on your selection.

I bought my 13 months / 9500kms old ZMA R for 65000/-

Originally posted by ashwinprakas View Post

Mileage Shifting.

0Kmph ~ 15Kmph =1st
15Kmph ~ 25Kmph =2nd
25Kmph ~ 35Kmph =3rd
35Kmph ~ 45Kmph =4th
45Kmph ~ 55Kmph =5th

Performance Shifting.

0Kmph ~ 25Kmph = 1st
25Kmph ~ 50Kmph = 2nd
50Kmph ~ 80Kmph = 3rd
80Kmph ~ 105Kmph = 4th
105Kmph ~ 140Kmph = 5th

Where did you get this data from ?

That means maximum mileage is got at 55 kmph . Is that correct ?

Originally posted by Aneesh@4GHz View Post

For mileage +10km/h on each gear.

1=10
2=20
3=30
4=40
5=50

Max mileage is at 50 kmph ?
I thought for bigger bikes like ZMA R , max mileage will be around 60 - 70 kmph . I'm not stating it , just my assumption . Any input , psr ?

**Aneesh@4GHz** · 08-29-2011, 08:42 PM

Originally posted by acs1207

Max mileage is at 50 kmph ?

I think best results will be in between 55-60km/h.

**ashwinprakas** · 08-29-2011, 08:55 PM

Originally posted by acs1207 View Post

When it's you who face any problem , the others benefit

'cause ou'll find the problem and fix it and post it .

Definitely.

Have to try it

It gets rid of the stupid chain noise and replaces it with popping sound, very funny to hear at higher speeds.

AFAIK , there's no optimum RPM for clutchless gear change . If you try to improve clutch life you will proportionately shorten gear life

. OT:In Yezdi bikes , there is a feature called 'auto-clutch' . The gear lever (which doubled as the kick-start lever) when depressed or pulled up to change gear does not allow gear to engage unless the lever comes back to normal position .

Theres no optimum RPM but theres a trick. In my zen we can disengage at any RPM and upshifting can be done at any RPM while slightly accelerating, but while downshifting we'd have to create a stable environment i.e not accelerating/de-accelerating it should be in the middle(way harder to do than put in words.). So was enquiring whether ZMA had any so tricks. But not interested anymore since psr sir advised about the replacement costs.

I bought my 13 months / 9500kms old ZMA R for 65000/-

That was a good sale, since the mileage's lower than 10k kms. Just to be certain, did you have to replace anything?

Where did you get this data from ?

That means maximum mileage is got at 55 kmph . Is that correct ?

Hehe.... C'mon dont tell me you never paid attention to you'r speedo???

Max mileage is at 50 kmph ?
I thought for bigger bikes like ZMA R , max mileage will be around 60 - 70 kmph . I'm not stating it , just my assumption . Any input , psr ?

According to the ZMA speedo its at 55kmph, if we try riding at 50kmph at 5th gear then the RPM'l be below 3k and you know what'll happen when we ride like that on our roads. Engine will stall while riding on unsteady roads as well as lesser mileage caused by more gear shifts.

Answers in BOLD & RED only for you.

**Vishakh** · 08-29-2011, 09:13 PM

Originally posted by acs1207 View Post

Max mileage is at 50 kmph ?
I thought for bigger bikes like ZMA R , max mileage will be around 60 - 70 kmph . I'm not stating it , just my assumption . Any input , psr ?

thats true i ride at 70 - 80 kmph most of the time and i get 43 kmpl wereas below that speed i get less economy

**ashwinprakas** · 08-29-2011, 09:18 PM

Originally posted by Vishakh View Post

thats true i ride at 70 - 80 kmph most of the time and i get 43 kmpl wereas below that speed i get less economy

Who said 43kmpl was ZMA's best mileage???

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